BlockTalk Find Your Set

Free tool

LEGO Missing Piece Checker

Rule out the usual hiding places first. If the piece really is gone, check the set piece by piece and leave with the element ID LEGO asks for, or a link to buy the part.

Let's Play Maths

Checking

9543 Let's Play Maths

120 pieces in 43 part and color combinations.

Before you call it missing

Builders who report a missing piece often find it in one of these places. Tick each one off as you look.

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Piece checklist

Duplo, Quatro and Primo 116 pieces

  • Duplo Brick 2 x 2 Blue Part 3437 Element 343723 ×10
  • Duplo Brick 2 x 2 with Eye with White Spot Print, on Two Sides - Type 1 Blue Part 3437pr0067 Element 4237422 ×1
  • Duplo Brick 2 x 3 with Curved Top Blue Part 2302 Element 230273 or 230223 ×1
  • Duplo Brick 2 x 4 Blue Part 3011 Element 4290075 or 301123 ×2
  • Duplo Brick 2 x 8 Blue Part 4199 Element 4291881 or 419923 ×1
  • Duplo Plant, Flower with 1 Top Stud Blue Part 6510 Element 4244695 or 4156701 ×10
  • Duplo Animal Lion Cub on Base Earth Orange Part 2275c01pr0001 ×1
  • Duplo Brick 2 x 2 Green Part 3437 Element 6528078 or 4583552 ×10
  • Duplo Brick 2 x 2 with Eye with White Spot Print, on Two Sides - Type 1 Green Part 3437pr0067 Element 82062 ×1
  • Duplo Brick 2 x 3 with Curved Top Green Part 2302 Element 230278 or 230228 ×1
  • Duplo Brick 2 x 4 Green Part 3011 Element 4290071 or 301128 ×2
  • Duplo Brick 2 x 8 Green Part 4199 Element 4291886 or 419928 ×1
  • Duplo Plant, Flower with 1 Top Stud Green Part 6510 Element 4100854 ×10
  • Duplo Brick 2 x 2 Red Part 3437 Element 4583321 or 343721 ×10
  • Duplo Brick 2 x 2 with Eye with White Spot Print, on Two Sides - Type 1 Red Part 3437pr0067 Element 4107957 ×1
  • Duplo Brick 2 x 3 with Curved Top Red Part 2302 Element 230271 or 230221 ×1
  • Duplo Brick 2 x 4 Red Part 3011 Element 4583326 or 4290074 ×2
  • Duplo Brick 2 x 8 Red Part 4199 Element 4291879 or 419921 ×1
  • Duplo Plant, Flower with 1 Top Stud Red Part 6510 Element 4100774 ×10
  • Duplo Baseplate 12 x 16 Trans-Clear Part 6851 Element 4225481 ×2
  • Duplo Animal Panda, Cub, on Green Base, with Eyes Looking Left Print White Part 2334c01pr0001 Element 4287549 or 75015 ×1
  • Duplo Animal Polar Bear Cub on Blue Base, Squared Eyes White Part 75016c01pr0002 Element 4282953 or 75016 ×1
  • Duplo Tile 2 x 2 with '10' Print White Part 6309pr0094 Element 4219339 ×1
  • Duplo Tile 2 x 2 with Number '1' Print White Part 6309pr0061 Element 6039735 or 4520737 ×1
  • Duplo Tile 2 x 2 with Number '2' Print White Part 6309pr0062 Element 6039736 or 4520738 ×1
  • Duplo Tile 2 x 2 with Number '3' Print White Part 6309pr0063 Element 6039737 or 4520739 ×1
  • Duplo Tile 2 x 2 with Number '4' Print White Part 6309pr0064 Element 6039738 or 4520740 ×1
  • Duplo Tile 2 x 2 with Number '5' Print White Part 6309pr0065 Element 6039741 or 4520741 ×1
  • Duplo Tile 2 x 2 with Number '6' Print White Part 6309pr0066 Element 6039742 or 4520742 ×1
  • Duplo Tile 2 x 2 with Number '7' Print White Part 6309pr0067 Element 6039743 or 4520743 ×1
  • Duplo Tile 2 x 2 with Number '8' Print White Part 6309pr0068 Element 6039744 or 4520744 ×1
  • Duplo Tile 2 x 2 with Number '9' Print White Part 6309pr0069 Element 6039745 or 4520745 ×1
  • Duplo Animal Tiger Cub on Green Base Yellow Part 2275c01pr0003 Element 4206384 ×1
  • Duplo Brick 2 x 2 Yellow Part 3437 Element 4583546 or 343724 ×10
  • Duplo Brick 2 x 2 with Eye with White Spot Print, on Two Sides - Type 1 Yellow Part 3437pr0067 Element 82061 ×1
  • Duplo Brick 2 x 3 with Curved Top Yellow Part 2302 Element 230274 or 230224 ×1
  • Duplo Brick 2 x 4 Yellow Part 3011 Element 4290060 or 301124 ×2
  • Duplo Brick 2 x 8 Yellow Part 4199 Element 4291883 or 419924 ×1
  • Duplo Plant, Flower with 1 Top Stud Yellow Part 6510 Element 4100853 ×10

Gear Parts 2 pieces

  • Storage Bin, Dacta, Medium Blue Part upn0038 ×1
  • Storage Bin Lid, Dacta, 19 x 24 Trans-Clear Part 71082 ×1

Non-System Parts 2 pieces

  • Die 6 Sided with Red and Blue Circles and Numbers Print White Part upn0236pr0004 ×1
  • Die 6 Sided with Thick 1 to 6 Print White Part upn0236pr0005 ×1

Tick each piece as you find it, or mark it missing.

When a piece really is missing

Ask LEGO

LEGO takes requests for pieces missing from a new set through its customer service site. The form asks for the set number and each piece's element ID, the number printed beside the piece in the parts list at the back of the instructions. This checker lists both.

Request a replacement from LEGO

Buy the piece

Mark a piece missing and your list links it to an eBay search for that part, which also covers pieces from older or second-hand sets.

Keep a record

Copy or download your missing list (the CSV opens in any spreadsheet), or print the whole checklist and tick pieces off on paper. Your marks stay in this browser, so you can check a big set over several sittings.

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